app-admin/procinfo-ng: fix build w/ clang, -Wformat-security

It's a lazy fix but upstream is dead and surprisingly other
distros still package this. Fix -Wformat-security while at it.

Closes: https://bugs.gentoo.org/719790
Signed-off-by: Sam James <sam@gentoo.org>

app-admin/procinfo-ng/files/procinfo-ng-2.0.304-wformat-security.patch

@@ -0,0 +1,11 @@
+--- a/procinfo.cpp
++++ b/procinfo.cpp
+@@ -211,7 +211,7 @@ int mainLoop(bool perSecond, bool showTotals, bool showTotalsMem, bool fullScree
+ 	try {
+ 		rows = getNetStats(perSecond, showTotals, skipIfaces, elapsed);
+ 	} catch (string exceptionMessage) {
+-		print(exceptionMessage.c_str());
++		print("%s", exceptionMessage.c_str());
+ 	}
+ 	print("\n");
+ 	prettyPrint(rows, rowWidth, true);

app-admin/procinfo-ng/procinfo-ng-2.0.304-r2.ebuild

@@ -1,9 +1,9 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
-inherit autotools
+inherit autotools flag-o-matic
 
 DESCRIPTION="Completely rewrite of the old system monitoring app procinfo"
 HOMEPAGE="https://sourceforge.net/projects/procinfo-ng/"
@@ -13,17 +13,26 @@ LICENSE="|| ( GPL-2 LGPL-2.1 )"
 SLOT="0"
 KEYWORDS="amd64 ~hppa x86"
 
-RDEPEND="sys-libs/ncurses:0="
+RDEPEND="sys-libs/ncurses:="
 DEPEND="${RDEPEND}"
 BDEPEND="virtual/pkgconfig"
 
 PATCHES=(
 	"${FILESDIR}"/${P}-autotools.patch
 	"${FILESDIR}"/${P}-man.patch
+	"${FILESDIR}"/${P}-wformat-security.patch
 )
 
 src_prepare() {
 	default
+
 	mv configure.{in,ac} || die
 	eautoreconf
 }
+
+src_configure() {
+	# bug #719790
+	append-cxxflags -std=c++03
+
+	default
+}